Burner for gas singeing-machines.



W. W. KEMP & W. H. VAN HORN.

BURNER FOR GAS SINGEING MACHINES.

APPLICATION FILED APR.22, 1913.

Patented Feb. 16, 1915.

3 SHEETS-SHEET 1.

amen b 6018 THE NORRIS PETERS CO4, FHOTO LITHOH WASHING roN. D cv W. W.KEMP & W. H. VAN HORN.

BURNER FOB. GAS SINGEING MACHINES.

APPLICATION FILED APR.2.2, 1913.

Patented Feb. 16, 1915.

3 SHEETS-SHEET 2.

llllll] I amozwliozs 3 THE NORRIS PETERS ca, PHDTOLITHO., WASHING TON D.C.

Patented Feb.16,1915.

3 SHEETS-SHEET 3.

W. W. KEMP & W. H. VAN HORN.

BURNER FOR GA SINGEING MAGHINE$ APPLICATION FILED APR.22, 1913.

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WILLIAM WALLACE KEMP AND WILLIAM H. VAN HORN, F BALTIMORE, MARYLAND.

BURNER FOR GAS SINGEING-MACHINES.

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Specification of Letters Patent.

Patented Feb. 16, 1915..

Application filed April 22, 1913. Serial No. 762,953.

To all whom it may concern Be it known that we, WILLIAM WALLACE KEMP andWILLIAM H. VAN HORN, citi- Zens of the United States, residing atBaltimore, in the State of Maryland, have invented new and usefulImprovements in Burners for Gas SingeingMachines, of which the followingis a specification.

This invention relates to gas using machines, more particularly tomachines of the rotary type for singeing hosiery, and has for an objectto provide an improved burner for such machines which may beautomatically controlled by the operation of the machines.

Previously in machines of this type the flame has been burnedcontinuously, needlessly heating the adjacent parts of the machine whenthe flame is not in actual use and causing waste of the fuel supplyingthe flame. In this type of machine the articles are fed to the flameintermittently, a considerable space of time elapsing between thefeeding of the articles, and it is the object of the present inventionto prevent the waste of the fuel supplying the flame during this lapseof time between the application of the articles to the flame.

In carrying out this object, the invention comprises, broadly, a valvecontrolling the supply of fuel to the flame, and means 0perated by themovable parts of the machine for opening and closing the valve so as tocompletely extinguish the flame or turn the flame down between thefeeding of the articles so that no appreciable heat will be generated bythe flame when not in actual use and the supply of fuel will be cut downto a minimum.

Another object of this invention is to provide the machine withoperating means which may be adjusted to turn on or raise the flame atany desired point of the operation of the machine, and tokeep the flameburning as long as desired to accommodate the machine toarticlesrequiring different times of exposure to the flame.

Other objects and advantages of this invention will appear from thefollowing detail description of one embodiment of this invention, andfrom the accompanying drawings in'which Figure 1 is a side elevation ofa conventional form of rotary singeing machine having the improvedburner applied thereto. Fig. 2 is an elevation of the burner showing insection the adjacent parts of the singeing machine supporting theburner. Fig.- 3 is a detail enlarged sectional view of the singeingmachine on the line 83 of Fig. 2. Fig. 4 is a top plan view of theenlarged section of Fig. 3. Fig. 5 is a detailed enlarged longitudinalsectional view through the valve of the burner.

As illustrated in the present drawing the improved burner is applied toa rotary singeing machine adapted particularly to hosiery, and in thegeneral illustration of this singeing machine designates the frame inwhich is mounted a transverse shaft 11 upon which is secured arelatively large gear-wheel 12 driven in any suitable manner so as torotate the shaft 11. Also mounted upon the shaft 11 is a spider 13,shown as having three radially extending arms upon the outer ends ofwhich are mounted supports 14 curved in the arc of a circle the centerof which is the shaft 11. It will be noted that a considerable space isprovided between the supports 14 to admit of the application of articlesto be singed. The frame 10 is provided with a superstructure 15 carryingat one side an inclined support 16 upon which are mounted the burnertubes 17. These burner tubes 17 may be mounted upon the support 16 inany suitable manner and are shown in the present instance as beinggrouped in pairs and carried upon Ts 18. The Ts 18 extend throughsuitable openings in the support 16 and the tubes extend inwardly in theformation of yokes open at their inner ends for the reception of thesupports 14, which are offset laterally from the arms of the spider 13.The superstructure 15, for the purpose of reinforcement of the same, isprovided intermediate its ends with a web 19 provided with a horizontalflange 20 turned oupowardly from the web 19 toreinforce the we Theburner of this invention, and as disclosed in the present drawings,comprises a valve casing 21 provided upon its inner side with a stud 22fitting in a socket 23 detachably mounted on the support 16 of thesuperstructure and arranged below the burner tubes 17. For the purposeof securing the valve casing 21- at the desired angle a set screw 24: isthreaded through one side of the socket for engagement with the stud 22so as to hold the same from turning after the valve casing has beenadjusted. A stem 25 is mounted in the valve casing 21 for longitudinalmovement therein, and is normally depressed by a spring 26 surroundingthe upper end of the stem 25 and hearing at its lower end against theouter side of a valve 27 mounted on the stem and being compressedagainst the valve by a cap 28 detachably secured upon the upper end ofthe easing 21. As shown in detail in Fig. 5 the cap 28 is provided withan upstanding hollow projection registering with the stem 25 and adaptedto receive the upper end thereof when the stem is raised against thetension of the spring 26. In one side of the casing 21, and above thevalve 27, is a gas inlet nipple 29 adapted for connection with asuitable source of gas supply. The casing 21 is reduced in diameterimmediately below the valve 27 to provide therefor a seat 30 whereby thesupply of gas through the nipple 29 is cut off by the seating of thevalve 27 from the lower part of the casing 21. In the two-pipe valvedisclosed in the present drawing the lower end of the casing 21 is Iprovided at one side with a nipple 31 adapted for attachment to asuitable source of compressed air supply and the casing is provided withan internal annular shoulder or flange 32 immediately above the nipple31 and into which a plug valve 33, mounted upon the stem 25 and spacedbelow the valve 27, is adapted to snugly fit to close ofi the supply ofair to the middle portion of the casing 21. The casing 21 is providedwith a third nipple 34, leading from a point intermediate the valves 27and 33, to which is secured a supply pipe 35 extending to the Ts 18 ofthe burner tubes. The stem 25 preferably extends but a short distancebelow the casing 21 and is provided on its lower end with a couplingsleeve 36 secured tothe stem 25 in the usual manner by a set screw andadapted to receive in its lower end a valve operating rod 37.

A detachable bracket 38 is secured to the superstructure 15 in anysuitable manner, such as by constructing the bracket 38 U-shape wherebyto engage the bracket over the horizontal flange 20 of thesuperstructure and mounting a plurality of setscr ews 39 in the underside of the bracket for engagement against the lower side of the flange20 to thus secure the bracket to the web 19. Rising from the bracket 38is a lug 40 upon which is mounted for rotatable adjustment, by means ofa clamping screw 41, a guiding sleeve 42 receiving the lower end of thevalve operating rod 37 and admitting of the longitudinal slidingmovement of the rod 37 therethrough. A second lug 43 rises from thebracket 38 in spaced relation to the lug 40, and is provided with abearing in its upper end receiving therethrough a stubshaft 44. Thestub-shaft 44 projects through the superstructure 15 and carries uponits outer end a valve rod lifter 45 provided upon its inner end with asleeve engaging the stub-shaft 44 and adjustably fixed thereon by aset-screw 46. The outer end of the lifter 45 is flattened as shown andbears against the lower end of the valve operating rod 37 which projectsslightly below the guiding sleeve 42.

The inner end of the stub-shaft 44 has fixed thereon, by a set screw 47,an arm 48 upon the outer end of which is mounted a roller 49 adapted forengagement with a cam hereinafter fully described. Secured against theouter side of the gear-wheel 12, which turns with the supports 14, is acam wheel 50 preferably made up of a number of parts, shown as in twoparts, whereby the cam wheel 50 may be placed around the shaft 11without removing the shaft from the frame 10.

From Fig. 3 of the drawings it will be noted that the cam wheel 50 ismade up of two semi-circular parts, each of which is provided at itsends with inwardly extending lugs 51, the lugs at the meeting ends ofthe sections of the wheel abutting and being secured together byclamping screws 52. The wheel 50 is provided at points opposite to thespokes of the gear-wheel 12 with clamps 53, the same being shown ascomprising straps one of each clamp being secured to the wheel 50 whilethe opposite strap of each clamp is secured across the inner side of theadjacent spoke by means of the clamping screws 54. In this manner thewheel 50 is rigidly secured upon the gear 12 and moves therewith. Theperiphery of the Wheel 50 is smooth and is concentric to the shaft 11and supports the rollers 49 in normal inactive position whereby thevalve operating rod 37 remains at rest under the tension of the spring26. The wheel 50 is provided at points opposite to the supports 14 withcam blocks 55 having inclined ends, as at 56, up over which the roller49 rides as the cam wheel 50 is turned and the blocks 55 are broughtinto register with the roller. Each cam block 55 raises the roller andholds the roller in such raised position during the time occupied in thepassage of a predetermined length of the corresponding support 14between the burner tubes 17. The cam block 55 is of such a length thatit supports the roller until the desired length of the support 14 passesfrom between the burner tubes 17.

The articles to be singed are of different lengths, and in order toaccommodate the machine to these different length articles, and toeconomize the consumption of fuel, the cam blocks 55 are supplementedwith supplemental blocks 57 which inter-fit with the cam blocks 55 andprovide a continuation thereof. For the purpose of securing the blocks55 and 57 upon the cam wheel 50 the blocks are provided with pairs ofspaced and inwardly extending lugs 58 straddling the rim of the wheel 50and having screwthreaded openings therethrough for the reception ofset-screws 59 adapted to extend inwardly through the lugs 58 and engageagainst the inclined shoulder 60v on the side of the wheel 50. The wheel50 is provided with the shoulder 60 on each side so that the set-screws59 which are carried in the opposed lugs have a substantial support forholding the blocks 55' and 57 to the wheel. The blocks 55, which are ofconsiderable length are provided with two or more pairs of the lugs 58so as to substantially support the blocks upon the wheels. It isunderstood that there are a number of the blocks 55 on the Wheel 50,corresponding to the number of the supports 14 on the spider, so thatthe valve is opened each time that a support 14 is brought into the.operative path of the flame issuing from the burner tubes 17 In theoperation of the burner the gear wheel 12 is rotated by any suitablemeans whereby the shaft 11 is turned and effects the turning of thespider 13. As the gear wheel 12 is rotated the cam wheel 50 is carriedtherewith and the roller 49 rides freely over the periphery of the camwheel 50. When one of the work supports 14 reaches the burner tubes 17one of the cam blocks 55 engages the roller and lifts the same from theperiphery of the wheel. As the roller is lifted the arm 48 is raised,the stub-shaft 44 is turned, and the lifter 45 is moved up against thelower end of the supporting sleeve 42, lifting the valve operating rod37 against the tension of the spring 26. When the rod 37 is raised thestem 25 moves therewith and lifts the valves 27 and 33 from the seat 30and flange 32 respectively, whereby gas is admitted to the nipple 34,and compressed air is admitted to the nipple 34:. The gas and aircommingle and pass through the supply pipe 35 to the Ts 18 from whichthis gaseous mixture is distributed to the several burner tubes 17 whereit is ignited from a pilot 17 The pilot 17*, as may be seen from Fig. 2of the drawings, comprises one or more small tips located immediatelyabove the lower burner tubes 17 and supplied continuously with gas fromthe common gas supply pipe 29 by a branch pipe 17 leading from thesupply pipe 29 forwardly of the main burner supply valve 21. Thus thepilot takes its gas from the main pipe 29 before the gas passes throughthe valve 21 and a steady flame is thereby maintained at the pilot 17.It is of course understood that this is only one of many arrangements ofpilots that may be used, the present disclosure being merely for thepurpose of clearly illustrating the present invention. The valve is heldin this open po- Sition until the cam block 55, or the supplementalblocks 57 pass from beneath the roller 49. When the blocks pass frombeneath the roller, the roller is permitted to. drop down upon theperiphery of the wheel 50 wherebv the lifter 45 drops into normalposition and the rod 37 is released. The spring 26 forces the valves 27and 33 closed so that the fuel supply is cut off to the burners and thesmall pilot 17 a alone re-.

mains burning.

The structure of the valve 21 may be other than shown in the drawings,since this valve forms no part of this invention except as being of aconstruction adaptable for use connection with the automatic controllingmeans. Thus the valve may have any number of openings, may be made tosupply gas from any suitable source to the burner tubes and may bedifferent in construction. It is also understood that this invention isnot limited to the specific construction herein described, and shown,but this structure may be varied to accommodate the burner to machinesof different forms and of a different character than singeing. machines,the scope of the invention being determined by the appended claims.

What is claimed is 1. In a gas singeing machine and in combination, arotary frame, a plurality of spaced apart article supports on saidframe, a burner, means for rotating the frame to bring said supports oneat a time into the line of the flame of the burner, and means connectedto the burner and to the rotary frame for supplying gas to the burneronly when said supports are in the line of the flame.

2. The combination with a stationary frame, a rotary frame therein, aplurality of spaced apart article supports on the rotary frame, and aburner on said stationary frame in the path of said supports, of meanson the stationary frame connecting said burner with said rotary framewhereby to control the burner to admit gas thereto only during thetravel of a predetermined length of said supports past said burner.

8. In a gas singeing machine, the combination with a rotary frame,spaced apart supports on the frame and a burner in the path of saidsupports, of gas supplying means connected between the burner and theframe and adapted to admit gas to the the gas supply to said burnertubes and detachable means carried on said frame and said operatingmeans and having connection with said valve whereby to control the flameof the burner tubes.

5. In a singeing machine and in combination, burner tubes, a rotaryframe, a plurality of article supports on the frame, means connected tothe frame adapted to move the supports consecutively into the line ofthe flame of the burner tubes, and automatic means controlled by therotary frame connected to the burner tubes for cutting off the supply ofgas to the tubes at predetermined times during the movement of saidsupports.

6. In combination with a rotary frame,

spaced apart supports on said frame and a stationary burner in the pathof said supports, a valve controlling the supply of gas to said burner,and means connected to said valve and to said frame for opening saidvalve upon the registration of one of said supports with said burner,and maintaining said valve open during the passage of a predeterminedlength of the support past the burner. v 7. In a gas singeing machine,the combination with a rotary frame, supports on the frame and operatingmeans for the frame including a driving gear, of a burner in the path ofsaid supports, a valve regulating the flow of gas to said burner, a pushrod connected to the valve for operating the same, and a sectional cammember adapted for securement to said driving gear and for engagementwith said push rod to operate the same.

8. In combination with a rotary singeing machine having a rotary frame,a shaft for supporting the frame and a driving gear on the frame forrotating the frame, a burner in the path of the frame, a valvecontrolling the admission of gas to said burner, a rod connected to thevalve for opening and closing the same, and a sectional cam memberadapted for engagement about the shaft and for securement to said drivegear to turn with the latter and operate said rod.

9. In a gas machine and in combination, a frame, a plurality of spacedapart article supports mounted on the frame, burner tubes on the frame,operating means on the frame having connection with said articlesupports adapted to rotate the same and bring said supportsconsecutively into the line of the flame of said burner tubes, a valvecontrolling the supply of gas to said burner tubes, and means connectedto said operating means and to said valve for opening and closing thevalve to reduce said flame upon the passage of articles on the supportsout of the line of the flame.

10. In a gas using machine, the combination with a frame, burner tubescarried at one point on the frame, a rotary frame in said first frame, aplurality of spaced apart work supports mounted on the rotary frame, andoperating means for turning the rotary frame whereby to bring said worksupports one at a time through the space between said burner tubes, of avalve supplying gas to said burner tubes, and controlling meansconnected to said operating means and to the valve and adapted to cutoff the supply to said tubes upon the passage of a predetermined lengthof the work support through the space between the tubes.

11. In combination with a frame, a work support on the frame, burnertubes on the frame in the path of the work support, and a gear mountedin the frame and connected with said work support for rotating the same,a valve connected to said tubes for supplying gas thereto, an operatingrod connected to the valve for opening and closing the same, a liftermounted on the frame and engaging the lower end of said rod whereby tooperate the same, a pivoted arm connected to said lifter having a rollerin its outer end, a cam wheel connected to said gear and lying in thepath of said roller, and a plurality of detachable cam blocks mounted onsaid wheel adapted to lift said arm and maintain the same in suchposition during the passage of a predetermined length of the worksupport past the burner.

12. In a gas singeing machine, the combination with a rotary frame,spaced apart supports on the frame and a burner tube in the path of saidsupports, of a gas supply for said burner tube, an air supply for saidburner tube, a controlling valve common to said gas and air supplywhereby to control the passage of a predetermined mixture of gas and airto said burner tube, and operating means for the valve connected to saidrotary frame adapted to open and close the same during the passage ofeach of said supports through the flame of the burner tube whereby tointermittently feed a uniform mixture of gas and air to said tube.

13. In a singeing machine, the combination with a rotary frame, aplurality of supports on the frame, and a stationary burner tube in thepath of said supports, of a gas inlet, an air inlet, a valve connectingsaid gas and air inlets to said burner tube and admitting apredetermined mixture of gas and air to the burner tube, and valveopening and closing means connected to the retary frame adapted tooperate said valve to admit the predetermined mixture of gas and air tosaid burner tube upon the registration of each one of said supports withthe burner tube and to close said valve upon the passage of apredetermined length of each of said supports past a burner tube.

14. In a gas using machine the combination with a frame having areinforcing web,

a shaft mounted in the frame, work supports on said shaft, a gear onsaid shaft adapted to rotate the same, and burner tubes carried on theframe in the path of said work supports, of a valve carried by the framehaving connection with said burner for supplying gas thereto, anoperating rod depending from the valve, a detachable bracket mountedupon the Web of said frame, a lifter carried by the bracket and engagingsaid rod, and means connected to said gear for engagement with saidlifter whereby to move the same to open said valve upon the entrance ofone of said work supports between said burner tubes.

15. In asingeing machine and in combination, a frame, a plurality ofWork supports mounted in the frame, a gear in the frame connected tosaid supports and adapted to rotate the same, burner tubes lying in thepath of said supports, a valve supplying gas to said tubes, a camdetachably secured to said gear, a rocker arm carried by the frame andlying in the path of said cam whereby to rock said arm upon the rotationof said cam, and a connection between said valve and said rocker armwhereby said valve is operated upon the turning of said cam.

16. In a singeing machine and in combination, a frame, article supportson the frame, a gear on the frame for turning said supports, burnertubes on the frame in the line of said supports, a bracket detachablymounted on the frame, a rock shaft journaled in the bracket, a liftermounted 011 one end of the rock shaft, a valve controlling the-gassupply to said tubes, an operating rod connected to said valve andengaging said lifter, a sectional c'am wheel, clamps on the Wheelengaging the gear, a series of detachable cam blocks secured upon theperiphery of said cam Wheel and corresponding to the number of articlesupports, a rocker arm carried upon the opposite end of said rock shaft,and a roller upon the outer end of said arm engaging said cam wheel andsaid cam blocks.

17. In a singeing machine and in combination, a frame, a plurality ofwork supports mounted in the frame, a gear in the frame connected tosaid supports adapted to rotate the same, burner tubes lying in the pathof said supports, a valve supplying gas to said tubes, a cam detachablysecured to said gear, a rocker arm carried by the frame and lying in thepath of said cam whereby to rock said arm upon the rotation of said cam,a connection between said valve and said rocker arm whereby said valveis operated upon the turning of said cam to open and close the valve,and a continuously burning pilot adjacent said burner tubes adapted toignite the gas issuing from the tubes when said valve is open.

In testimony whereof We have hereunto set our hands in presence of thesubscribing witnesses.

WILLIAM WALLACE KEMP.

WILLIAM H. VAN HORN. Witnesses BnLvA B. BLAKE,

CHARLES T. BYRNES,

J. MARSH MATTHEWS.

Copies of this patent may be obtained. for five cents each, byaddressing the Commissioner of Patents,

Washington, D. (3.

